"Changsha City" Non-ferrous Metals Green Mining Innovation and Entrepreneurship Competition Concludes in Changsha

Focusing on core areas such as mineral exploration, smelting and processing, and new materials.

With the theme of "Forging Dreams in Nonferrous Metals, Creating and Sharing the Future", the enterprise group finals of the 2025 Hunan (International) Innovation and Entrepreneurship Competition—Green Mining Professional Track for Nonferrous Metals recently concluded in Changsha. Ten companies stood out with remarkable performances in technological innovation, market prospects, and environmental benefits.

The competition showcased a range of impressive innovative technological achievements. Hunan Wanzong Resource Technology Co., Ltd.’s solid waste backfilling technology for mines offers a new approach to solving tailings disposal challenges. "Hunan is rich in mineral resources, but historically, low tailings concentration made efficient utilization difficult. Our pioneering super-flow slurry backfilling technology can increase tailings backfill concentration to over 80%," explained Wu Zhenjun, a professor at the College of Chemistry and Chemical Engineering of Hunan University and the head of the company.

In addition, Wu Zhenjun’s team has independently developed functional reinforcement materials and new low-carbon cementitious materials using camellia seed meal extract and mineral processing solid waste as primary raw materials. These innovations are both environmentally friendly and cost-effective, enabling high-value conversion of bulk solid waste. The resulting products include negative-carbon high-performance inorganic coatings and ultra-high-strength structural components.

Similarly, Shuikoushan Nonferrous Metals Co., Ltd.’s high-purity bismuth electrolytic refining technology addresses industry challenges. "By innovating the electrolyte formula and impurity removal process, we have reduced energy consumption to 50 kW·h/t, significantly lower than the industry average, while ensuring strong product stability and broad market prospects," said Liu Yong, a technical expert from the company.

A representative from the competition organizing committee stated that the event focused on core areas such as mineral exploration, smelting and processing, and new materials, injecting momentum into the industry’s transformation toward higher-end, greener, and smarter development. Moving forward, efforts will be made to identify high-quality projects, accelerate the industrialization of key technologies, and support Hunan in building a national demonstration hub for scientific and technological innovation and industrial upgrading in the nonferrous metals sector.

The competition evolved from the China (Hunan) Nonferrous Metals Industry Innovation Challenge, which has been held for five consecutive years. To date, it has facilitated over 300 project matchmakings, resulted in 35 commercialized outcomes, and generated technology transaction volumes exceeding 230 million yuan (approximately USD 32 million, based on current exchange rates).

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